GOHUOS Men's Military Stainless Steel Watch Chronograph Calendar Luminous Quartz Wrist Watch-Black Imported Quality Quartz movement with analog display,Calendar Auto Date function. 3 workable sub-dials for chronograph minute,chronograph second,24 hours function Luminous Hands, knowing the time cleary at night. Water resistant to 30m(99 ft), not for swimming,diving, shower, etc. Hardness glass,scratch resistance and abrasion resistance.